matlab.io.fits.readKeyLongLong
Read keyword as 64-bit integer value
Syntax
[value,comment] = readKeyLongLong(fptr,keyname)
Description
[value,comment] = readKeyLongLong(fptr,keyname)
returns the specified key
and comment. value
is returned as an int64
scalar
value.
This function corresponds to the fits_read_key_lnglng
(ffgkyjj)
function in the CFITSIO library C API.
Examples
import matlab.io.* fptr = fits.openFile('tst0012.fits'); n = fits.getNumHDUs(fptr); for j = 1:n fits.movAbsHDU(fptr,j); [key,comment] = fits.readKeyLongLong(fptr,'NAXIS'); fprintf('HDU %d: NAXIS %d, "%s"\n', j, key, comment); end fits.closeFile(fptr);